Model comparison
GPT-5.3 Codex vs Granite 4.1 8b
GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 37.4 on the Noometry Index.
Last verified . 1 shared benchmarks.
Summary
- They share 1 benchmark with published results for both. GPT-5.3 Codex scores higher in 1 category and Granite 4.1 8b in 0 categories; one gap is clear of the uncertainty.
- The widest gap is in coding, where GPT-5.3 Codex leads 48.6 to 30.1.
- Granite 4.1 8b has downloadable open weights; the other is API-only.
Side by side
| GPT-5.3 Codex | Granite 4.1 8b | |
|---|---|---|
| Provider | OpenAI | IBM |
| Noometry Index | 45.8 | 37.4 |
| Released | 2026-02-05 | — |
| Weights | Proprietary | Open |
| Context window | 400K | — |
| Max output | 128K | — |
| Input $ / M tokens | $1.75 | — |
| Output $ / M tokens | $14 | — |
| Results tracked | 8 | 13 |
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Category by category
Coding GPT-5.3 Codex leads
GPT-5.3 Codex: 48.6 (#56), Granite 4.1 8b: 30.1 (#297)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena WebDev | 1409 | 1192 |
| SWE-bench Verified | 74.8% | — |
| WeirdML | 79.3% | — |
| LMArena Coding | — | 1312 |
| ALE-Bench | 1,655 | — |
Agentic & Tool Use Not comparable
GPT-5.3 Codex: 48.0 (#9), Granite 4.1 8b: —
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| Terminal-Bench | 78.4% | — |
| METR Time Horizons | 74.5% | — |
| Vending-Bench 2 | 5,940 | — |
Reasoning Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 25.7 (#143)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Hard Prompts | — | 1293 |
| Epoch Capabilities Index | 156.77 | — |
Math Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 36.4 (#166)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Math | — | 1312 |
Knowledge Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 36.1 (#174)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Expert | — | 1309 |
Multilingual Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 41.7 (#204)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Non-English | — | 1261 |
| LMArena Chinese | — | 1337 |
| LMArena Russian | — | 1240 |
Instruction Following Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 66.9 (#203)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Instruction Following | — | 1269 |
Long Context Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 38.7 (#193)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Longer Query | — | 1275 |
Writing & Preference Not comparable
GPT-5.3 Codex: —, Granite 4.1 8b: 48.1 (#204)
| Benchmark | GPT-5.3 Codex | Granite 4.1 8b |
|---|---|---|
| LMArena Text | — | 1290 |
| LMArena Creative Writing | — | 1251 |
| LMArena Multi-Turn | — | 1268 |
Frequently asked questions
Is GPT-5.3 Codex better than Granite 4.1 8b?
GPT-5.3 Codex is the stronger model overall, scoring 45.8 to 37.4 on the Noometry Index.
Is GPT-5.3 Codex or Granite 4.1 8b better for coding?
GPT-5.3 Codex scores higher on coding benchmarks: 48.6 versus 30.1 in the Noometry coding category.
How many benchmarks do GPT-5.3 Codex and Granite 4.1 8b share?
1 benchmark has published results for both models. GPT-5.3 Codex has 8 scored results on Noometry and Granite 4.1 8b has 13.